Equivalent & Substitute Parts for RK73H1HTTC2433F

Part Overview

The RK73H1HTTC2433F is a 243 kOhm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 package (0.60mm x 0.30mm metric). This component is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction. The part is currently classified as "Not For New Designs," indicating it has been superseded. Identifying equivalent and substitute parts is necessary for ongoing support of legacy systems, inventory optimization, and design flexibility when the primary part becomes unavailable.

Substiute Parts

RK73H1HTTC2433F

KOA Speer Electronics, Inc.In Stock: 9804RK73H1HTTC2433F Datasheet

Current PartRFQ

RK73H1HTTCM2433F

KOA Speer Electronics, Inc.In Stock: 871RK73H1HTTCM2433F Datasheet

MFR RecommendedRFQ

AC0201FR-07243KL

YAGEOIn Stock: 922AC0201FR-07243KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC2433F is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 243 kOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Package: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• Moisture resistance: Required
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

All identified substitute parts meet these parameters without exception. Substitutes are grouped into two categories: (1) manufacturer-recommended active alternatives from KOA Speer Electronics, and (2) direct cross-reference parts from alternative manufacturers with identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: RK73H1HTTCM2433F

The RK73H1HTTCM2433F is the manufacturer-recommended substitute from KOA Speer Electronics. This part maintains identical electrical specifications and is classified as "Active" product status, ensuring long-term availability and supply chain continuity. It is suitable for new designs and ongoing production of legacy systems. Current inventory: 811 pieces.

Secondary Recommendation: AC0201FR-07243KL

The AC0201FR-07243KL from YAGEO provides a direct cross-reference alternative with full parameter equivalence, including moisture resistance and AEC-Q200 automotive qualification. This part is also classified as "Active" and offers supply diversification from an alternative manufacturer. Current inventory: 822 pieces.

Both substitute parts carry ROHS3 compliance and MSL 1 ratings, meeting all regulatory and environmental requirements of the original component. Selection between these options should be based on supply chain strategy, preferred supplier relationships, and packaging requirements (both are available in Tape & Reel format).

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2433F be used as a direct replacement for RK73H1HTTC2433F?

A: Yes. The RK73H1HTTCM2433F is electrically and mechanically identical to the RK73H1HTTC2433F across all critical parameters: 243 kOhms ±1%, 0.05W power rating, 0201 package, ±200ppm/°C temperature coefficient, -55°C to 155°C operating range, AEC-Q200 qualification, and ROHS3 compliance. The primary difference is product status (Active vs. Not For New Designs).

Q: Is AC0201FR-07243KL from YAGEO compatible with designs using RK73H1HTTC2433F?

A: Yes. The AC0201FR-07243KL meets all electrical and mechanical specifications of the original part, including resistance value, tolerance, power rating, package dimensions, temperature characteristics, automotive qualification, and moisture resistance. It is suitable for direct substitution in existing designs.

Q: What is the significance of "Not For New Designs" status on the original part?

A: This designation indicates that RK73H1HTTC2433F has been superseded and is no longer recommended for new product development. However, it remains available for legacy system support and repair. The recommended substitute RK73H1HTTCM2433F carries "Active" status and should be used for all new designs.

Q: Are there packaging differences between the substitute parts?

A: Both RK73H1HTTCM2433F and AC0201FR-07243KL are available in Tape & Reel (TR) packaging, matching the original part's packaging format. This ensures compatibility with automated assembly processes.

Q: Do all substitute parts meet automotive AEC-Q200 requirements?

A: Yes. All identified substitutes carry AEC-Q200 qualification, confirming suitability for automotive applications with equivalent reliability and quality standards.

Q: What is the moisture sensitivity level (MSL) for these parts?

A: All parts, including the original and substitutes, are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.